GEDigital Energy

g imagination at work

Transformers are key and expensive components of the electrical grid and knowledge of their health condition is essential to having a reliable network. When a transformer’s insulation system is overstressed, gases are produced that dissolve in the oil. Dissolved Gas-in-oil Analysis (DGA) is recognized as the best indicator of developing faults.

The IntellixTM GLA 100 is a small and intuitive transformer “gas level alarm”. It provides a cost-effective transformer warning solution using DGA, specifically tailored monitoring for less critical transformers that would typically be left unmonitored.

Critical Generation and Transmission transformers are typically equipped with fully featured multi-gas monitoring systems capable of providing real-time diagnostics. As the criticality decreases, the number of fault gases monitored also decreases, moving away from comprehensive monitoring.

The Intellix GLA 100 offers substantial, cost effective monitoring for the over 300,000* significant transformers worldwide that are currently unmonitored. It offers a monitoring solution for important, less critical, less expensive transformers, where the aim is less about protecting the asset and more about avoiding the consequences of an unplanned outage.

• Entrylevelpricepoint

• ContinuallymeasuresH2 fault gas

• 2gaslevelalarms,eachconfigurable

• Coloredlightindicatorsandrelayoutputs

• Easytoinstallon1inchvalve

• Manualsamplingport

• SmallPowerTransformers

• LargerDistributionPad-mountedTransformers

• Vacuumtypeoil-filledOLTCs

• Oil-filled'pipetype'cables

• Oil-filledinstrumenttransformers(CTsandPTs)

ProductOverview

Applications

Key Benefits

Fault Gas Alarm

StraightforwardAlerts

Configurable Alarms

Low Maintenance

• Gassensorresponds100%toHydrogen(general fault gas) and sensitive to Carbon Dioxide (overheated paper)

• Smallformfactoreasilymountedona1inchvalve exposed to the transformer oil. No extra piping or pump required. Weighing only 3.5 Kg

• NoneedforPCorsoftwaretomonitorgasvalues or trends

• 4front,sunlightvisible,lightindicatorsfor: - each alarm level - service alarm - power

• 3drycontactrelaysavailabletocommunicatealertstoacontrolcenter: - 2 for the fault gas alarms - one for the service alarm

• Alarmraisedwhenanabnormalleveloffaultgas is detected enabling further investigation of the developing fault condition

• Twogasalarmlevelsshowingincreasingseverityareavailable:oneforcautionandonefor alarm.

• TheIntellixGLA100comespresetwithdefaultalarm settings for simplicity but these are also userconfigurableusingDIPswitches.

• SimpleandReliable

• Nomovingparts

• Vacuum-resistant

• Noconsumables:nocarriergasesorcalibration gases required

• Nofieldcalibrationrequired

• Regularautomaticself-testwithservicealarm

IntellixTM GLA 100CostEffectiveTransformerWarningSolution

www.GEDigitalEnergy.com2

Intellix GLA 100

032911-v2

SpecificationsMEASUREMENTSGas in oil measurement range

40–5,000ppm

Accuracy Gas:±20%or±40ppm(whichever is greater)

Relativesensitivity H2:100%ofH2 concentration CO:~15%ofCOlevel1

Responsetime Less than 30 minutes2 (80%ofstepchange)

Samplingmethod Floodedportwith1inchNPTmale thread

External sampling port

For glass syringe, with Luer stop cock

MECHANICALEnclosure rating IP-55

Nema250(Type4X)availableinJune 2011

Enclosure dimension

17.1 x 18.9 x 25.8 cm (6.7x7.4x10.1in) height, width, depth

Weight 3.5 kg (7.7 lb)

OUTPUTSLight Indicators 4sunlightvisibleindicators:

Red–Alarm Amber–Caution Green–Power Blue–Service

Alarm Contact -TwoSPDTalarmrelays(Type C) for gas alarms status (Caution & Alarm levels) -OneSPDTalarmrelay(TypeC)dedicated to system faults

RelayContactRatings

1A@250VACresistiveload, 0.1A@250VDCresistiveloador0.5A@48VDC.

ENVIRONMENTALOperatingtemperature

Ambient:-40°Cto+55°C (-40°Fto+131°F)

Operatinghumidity

0-95%RH(non-condensing)

Oiltemperatureatvalve

-20°Cto+105°C3(-4°Fto+221°F)

Oilpressure 0-700kPa(0-100psia)negativepressure resistant sensor

Powersupplyrequirements

100-120/200-240Vac±10%50-60Hz±5%

STANDARDSType Tests MeetsstandardsCISPR11,EN

61000-4-2,EN61000-4-3,EN61000-4-4,EN61000-4-5,EN61000-4-6,EN61000-4-8,EN61000-4-11,IEC61000-4-12,IEC61000-4-16,IEC61000-3-2,IEC 61000-3-3, IEC 60255-5,

Environmental tests

Meets standards IEC 60068-2-1, IEC 60068-2-2, IEC 60068-2-6, IEC 60068-2-30, IEC 60068-2-31,IP55,Nema250(type4x)available in June

CE Approval Meetsstandards: VD:EN61010-1 EMC:EN61326-1

OtherRequirements

cTUVusMark,RoHS

1 No cross reference with other gases at levels up to 5 times IEEEC57.104-2008Condition4

2Ingasphase,at35°C

3Atambienttemperaturegreaterthan40°C(104°F)orwhenoiltemperatureatvalveishigherthan90°C(194°F),afinnedhigh temperature valve adapter is required

SmallPowerTransformers

Fault gas “Alarm” level reached

Fault gas “Caution” level reached

Poweron/operation status

Systemfaultservicealarm

Pad-mountedTransformers

*source:NewtonEvansResearch©2010 General Electric Company. All rights reserved.

Vacuumtypeoil-filledOLTCs Oil-filled'pipetype'cables Oil-filledinstrumenttransformers(CTsandPTs)

CostEffectiveTransformerWarningSolution

GLA100 ** - ** - ** DescriptionValveType V1 InstallationonGateValveorBallValve

V2 InstallationonGlobeValveValveSize S1 1.0" diameter

S2 1.5" diameterS3 2.0" diameter

OperatingTemperature

T1 Ambienttemplessthan40°Candoiltemplessthan90°CT2 Ambienttempgreaterthan40°Coroiltemperaturegreatthan90°C(Finnedheatadaptorrequired)

Ordering